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71. 发明专利

JP3621749B2 Thermal insulation improved method of carbonization chamber end of the chamber-type coke oven 失效
公开(公告)号：JP3621749B2
公开(公告)日：2005-02-16
申请号：JP12458095
申请日：1995-04-26
申请人：新日本製鐵株式会社
发明人：純一大塚
IPC分类号： C10B21/00 , C10B21/10 , C10B21/20

72. 发明专利

JPH07113080A HEATING OF COKE OVEN AND HEATING APPARATUS 失效
公开(公告)号：JPH07113080A
公开(公告)日：1995-05-02
申请号：JP28185693
申请日：1993-10-15
申请人： NIPPON STEEL CHEMICAL CO
发明人： SAKUMA MASAO , SATO YOJI , MAENO YUKIHIKO , KATAHIRA HIDEHIRO
IPC分类号： C10B21/10 , C10B21/20 , C10B47/10 , C10B57/00
摘要： PURPOSE:To obtain coalite having a residual volatile matter content of 1-5% by keeping the temperature distribution in the oven and suppressing the deviation of the progress of carbonization between the end part of the coke side and/or pusher side of a carbonization chamber and other regions in the low- temperature carbonization of charged coal in a chamber cake oven and the low-temperature discharge of the produced coalite. CONSTITUTION:Charged coal is carbonized in a chamber coke oven at a low temperature and the obtained coalite is discharged at a low temperature. In the above process, the heating temperature of a part having delayed carbonization is arbitrarily and independently controlled to enable uniform progress of carbonization in the longitudinal direction of the carbonization chamber.

73. 发明专利

JPH05287273A 失效
公开(公告)号：JPH05287273A
公开(公告)日：1993-11-02
申请号：JP8419092
申请日：1992-04-06
申请人： NIPPON STEEL CORP
发明人： MATSUNAGA MASAO , SHIHARA YASUTAKA
IPC分类号： C10B21/20 , C10B57/00
摘要： PURPOSE:To provide a method which can rapidly and correctly give coke with a particle size serving the needs for use in a blast furnace independent of the operating efficiency of a coke oven. CONSTITUTION:In this method for controlling the particle size of coke in a coke oven provided with a combustion controlling means capable of freely controlling the oven temperature during one carbonization cycle, the particle size distribution of coke which is being conveyed is confirmed by a particle size detecting sensor and the particle size information is fed back to a heating pattern to adjust both the time Tmax required for the produced gas to reach a maximum temperature and the oven wall temperature Tw when coke is pushed to thereby control the coke particle size so that the obtained coke having more stable particle size distribution can be used for blast furnace operation.

74. 发明专利

JPH05222373A CONTROL OF COMBUSTION IN COKE OVEN 失效
公开(公告)号：JPH05222373A
公开(公告)日：1993-08-31
申请号：JP5642291
申请日：1991-03-20
申请人： NIPPON STEEL CORP
发明人： ARAKI MASAYUKI , TANAKA KEIHACHIRO , NAGANUMA YOICHI , YAMAMOTO YASUNORI
IPC分类号： C10B21/10 , C10B21/20
摘要： PURPOSE:To provide the title method comprising determining the flow rate of a fuel gas and air fed to each combustion chamber by calculation without providing the chambers with flow meters and appropriately controlling the air-fuel ratio of the combustion chamber according to the determined flow rates. CONSTITUTION:The flow rate of a fuel gas fed to each combustion chamber and that of air fed to the chamber are determined by calculation to determine the air-fuel ratio A/G(i), to which is made compensation for calorie change, waste gas O2 content and nonburning prevention to calculate the target value AGx(i). The target value of air flow rate is determined from the determined volume of gas feed VG2(i) and AGx(i), and the target values of the air flow rate and fuel gas flow rate are converted into the degrees of opening of the cocks by calculation.

75. 发明专利

JPH04501876A 失效
公开(公告)号：JPH04501876A
公开(公告)日：1992-04-02
申请号：JP50793690
申请日：1990-05-23
IPC分类号： C10B21/10 , C10B21/20 , C10B21/22

76. 发明专利

JPH03212485A METHOD FOR OPERATING COKE OVEN 失效
公开(公告)号：JPH03212485A
公开(公告)日：1991-09-18
申请号：JP922090
申请日：1990-01-17
申请人： NIPPON STEEL CORP
发明人： SHIHARA YASUTAKA , YAMAMOTO YASUNORI
IPC分类号： C10B21/20
摘要： PURPOSE:To effectively perform heating pattern control without causing deterioration in productivity and remodeling of equipment, reduce a fuel and improve coke quality by dividing carbonization chambers into plural operation units in the order of arrangement thereof and performing pushing/charging of each unit under specific conditions. CONSTITUTION:Carbonization chambers and combustion chambers of a horizontal type coke oven are alternately arranged and divided into plural operation units in the order of arrangement of the carbonization chambers. The operation order of pushing/charging of the respective carbonization chambers in each operation unit is performed while keeping the interval of the number of carbonization chambers due to positional shift of a ram and leveler of a pusher so that the shift of elapsed time of carbonization of the adjacent carbonization chambers may be minimized as the average of the aforementioned operation unit and the dispersion thereof may be also minimized. The pushing/charging operations of the next operation unit are then carried out.

77. 发明专利

JPH0324192A METHOD FOR MEASURING TEMPERATURE OF COKE IN CARBONIZING CHAMBER 失效
公开(公告)号：JPH0324192A
公开(公告)日：1991-02-01
申请号：JP15917389
申请日：1989-06-21
申请人： NIPPON STEEL CORP
发明人： YAMAMOTO YASUNORI , NAKAGAWA YOJI
IPC分类号： C01B31/02 , C10B21/20 , C10B41/00
摘要： PURPOSE:To follow the temperature change in coal accurately and to improve the quality of produced coke by coating frame bodies which will be burnt out by the temperature rise during carbonization with a heat insulating material, providing a plurality of thermocouples to the frame bodies, and inserting them into a carbonizing chamber of a coke oven. CONSTITUTION:Frame bodies 5 which are smaller than the inside section of a carbonizing chamber 1 are assembled using woods, heat-resistant plastics, etc., outside the chamber 1. The frame bodies 5 are each provided with a plurality of thermocouples 6, and compensating lead wires 7 of the frame bodies 5 and the thermocouples 6 are coated with a heat insulating material such as slag wool, a heat-resistant sheet, etc. The assembled frame bodies 5 at the outside are transported to the extruding side and the delivery side of the carbonizing chamber 1, and at least one of the frame bodies 5 is arranged in the carbonizing chamber 1 by manual pushing or an extruder or an exclusive jig. Coal is thrown from charging ports 2 and filled into all the space. Then, temperature rise for carbonization is carried out and the temperature in the coal during the carbonization of the charged coals is detected by a recorder 8.

78. 发明专利

JPH0250151B2 失效
公开(公告)号：JPH0250151B2
公开(公告)日：1990-11-01
申请号：JP16958684
申请日：1984-08-14
申请人： NIPPON STEEL CORP
发明人： TANAKA KEIHACHIRO , TAKAHASHI HIDEO , KAMIO SUSUMU
IPC分类号： C10B21/20

79. 发明专利

JPS6310754B2 失效
公开(公告)号：JPS6310754B2
公开(公告)日：1988-03-09
申请号：JP3490383
申请日：1983-03-02
申请人： SUMIKIN KAKO KK
发明人： SASAKI TAKASHI
IPC分类号： C10B21/10 , C10B21/20

80. 发明专利

JPS633087A COKE PRODUCTION EQUIPMENT OF COMBUSTION GAS CIRCULATION TYPE 失效
公开(公告)号：JPS633087A
公开(公告)日：1988-01-08
申请号：JP14766186
申请日：1986-06-24
申请人： NIPPON STEEL CORP
发明人： SHIBAMOTO SHINGO
IPC分类号： C10B5/10 , C10B21/20
摘要： PURPOSE:To provide the titled equipment of reduced cost while keeping the performance, having such mechanisms that the coal in a carbonizing chamber is heated by feeding a high-temperature combustion gas into the heating chamber of a heat storage chamber-free coke oven followed by exhausting the resultant gas, part of which is circulated to the heating chamber, the rest being used for preheating fuel gas, etc. CONSTITUTION:A high-temperature combustion gas is fed from a generator 15, via a channel 22 into the heating chambers in a heat storage chamber-free coke oven 1 with said heating chambers 2 and carbonizing chambers 3 alternately arranged to heat the coal in the chambers 3 through partition walls 5, the resultant combustion gas with reduced temperature being collected to exhaust through a vent 23. Next, part of the low-temperature combustion gas is circulated together with the high- temperature combustion gas, using a high-temperature blower 25 provided on the vent 23, into the chambers 2, whereas the rest of the low-temperature gas is subjected to a high-temperature recuperator 27 provided on another vent downstream from the circulation branch to preheat, through heat exchange, a fuel gas to be fed to the generator 15 and an air for combustion, thus producing coke in high efficiency.

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